What do you think with the below Picture ?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

What has a bottom at the top?

If six children and two dogs were under an umbrella, how come none of them got wet?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

This was asked in an interview with Coa-Cola.

The interviewer has given me 100 marbles(50 white and 50 black) and two empty boxes.
He then told me that he will leave the room and i need to place all the marbles in two boxes.

And When he come back, he will draw a marble from any of the two box and if the marble is white I will be hired.

Also
* No box can be empty.
* All 100 marbles must be placed in one of the two boxes.

So what should I have done?